<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Version>2.4.0.8</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>22</ContextCount>
  <ElementCount>173</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>3</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>101 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>102 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/BalanceSheet</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>103 - Statement - Consolidated Balance Sheets [Parenthetical]</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/BalanceSheetParenthetical</Role>
      <ShortName>Consolidated Balance Sheets [Parenthetical]</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>104 - Statement - Consolidated Statements of Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/IncomeStatement</Role>
      <ShortName>Consolidated Statements of Expenses</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>105 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/CashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>106 - Statement - Consolidated Statement of Stockholders Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/StockholdersEquity</Role>
      <ShortName>Consolidated Statement of Stockholders Equity (Deficit)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>107 - Disclosure - Nature of Operations and Continuance of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsNatureOfOperationsTextBlock</Role>
      <ShortName>Nature of Operations and Continuance of Business</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>108 - Disclosure - Going Concern</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsGoingConcernTextBlock</Role>
      <ShortName>Going Concern</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>109 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>110 - Disclosure - Property and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock</Role>
      <ShortName>Property and Equipment</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>111 - Disclosure - Related Party Transactions and Balances</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock</Role>
      <ShortName>Related Party Transactions and Balances</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>112 - Disclosure - Common Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock</Role>
      <ShortName>Common Stock</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>113 - Disclosure - Share Purchase Warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsSharePurchaseWarrantsTextBlock</Role>
      <ShortName>Share Purchase Warrants</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>114 - Disclosure - Stock Options</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsStockOptionsTextBlock</Role>
      <ShortName>Stock Options</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>115 - Disclosure - Commitments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsCommitmentsDisclosureTextBlock</Role>
      <ShortName>Commitments</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>116 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlock</Role>
      <ShortName>Income Taxes</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>117 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsSubsequentEventsTextBlock</Role>
      <ShortName>Subsequent Events</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>121 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>122 - Disclosure - Property and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables</Role>
      <ShortName>Property and Equipment (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>123 - Disclosure - Share Purchase Warrants (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsSharePurchaseWarrantsTextBlockTables</Role>
      <ShortName>Share Purchase Warrants (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>124 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>125 - Disclosure - Nature of Operations and Continuance of Business (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureNatureOfOperationsDetails</Role>
      <ShortName>Nature of Operations and Continuance of Business (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>126 - Disclosure - Going Concern (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureGoingConcernTextBlockDetails</Role>
      <ShortName>Going Concern (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>127 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureSignificantAccountingPoliciesTextBlockDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>128 - Disclosure - Property and Equipment (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentDisclosureTextBlockDetails</Role>
      <ShortName>Property and Equipment (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>129 - Disclosure - Related Party Transactions and Balances (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureRelatedPartyTransactionsDisclosureTextBlockDetails</Role>
      <ShortName>Related Party Transactions and Balances (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>130 - Disclosure - Common Stock (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureStockholdersEquityNoteDisclosureTextBlockDetails</Role>
      <ShortName>Common Stock (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>131 - Disclosure - Stock Options (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureStockOptionsTextBlockDetails</Role>
      <ShortName>Stock Options (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>132 - Disclosure - Commitments (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureCommitmentsDisclosureTextBlockDetails</Role>
      <ShortName>Commitments (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>133 - Disclosure - Income Taxes (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureIncomeTaxDisclosureTextBlockDetails</Role>
      <ShortName>Income Taxes (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>134 - Disclosure - Subsequent Events (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureSubsequentEventsTextBlockDetails</Role>
      <ShortName>Subsequent Events (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>135 - Disclosure - Schedule of Property and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentTextBlockDetails</Role>
      <ShortName>Schedule of Property and Equipment (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>136 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights, Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsActivityTextBlockDetails</Role>
      <ShortName>Schedule of Stockholders' Equity Note, Warrants or Rights, Activity (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>137 - Disclosure - Schedule of Components of Income Tax Expense (Benefit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlockDetails</Role>
      <ShortName>Schedule of Components of Income Tax Expense (Benefit) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>138 - Disclosure - Schedule of Deferred Tax Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.buckingham.com/taxonomy/role/DisclosureScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlockDetails</Role>
      <ShortName>Schedule of Deferred Tax Assets and Liabilities (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Info">Process Flow-Through: 102 - Statement - Consolidated Balance Sheets</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'May 31, 2012'</Log>
    <Log type="Info">Process Flow-Through: 103 - Statement - Consolidated Balance Sheets [Parenthetical]</Log>
    <Log type="Info">Process Flow-Through: 104 - Statement - Consolidated Statements of Expenses</Log>
    <Log type="Info">Process Flow-Through: 105 - Statement - Consolidated Statements of Cash Flows</Log>
  </Logs>
  <InputFiles>
    <File>tgri-20140531.xml</File>
    <File>tgri-20140531.xsd</File>
    <File>tgri-20140531_cal.xml</File>
    <File>tgri-20140531_def.xml</File>
    <File>tgri-20140531_lab.xml</File>
    <File>tgri-20140531_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
